snowbird,
It is my understanding that the writings were produced by a community of Jews (nowadays known as the "Johannine Community") that was expelled from the synagogue because of their Christology.
Much of the Gospel and 1 John reflects and describes the Community's beliefs as well as its antipathey towards the synagogue (aka "Jews", even though they themselves were Jews) as well as their anitpathy to those who left the Johannine Community ("those who were once with us").
The "signs" may be read at the literal superifical level (Book of "Signs" runs from John ch 2 to 12) but there is a layer that conveys the history and beliefs of the Community.
Their focus lay with the revelation of God through Jesus, the "Light", the "Way", so their focus lay with the Incarnation, unlike Pauls, whose focus was the Resurrection.
I have yet to discover whether Lazarus was a member of that Community, so I am keen to see any information that you are able to provide me with.
Thanks,
Doug